/*
 * This file is part of John the Ripper password cracker,
 * Copyright (c) 1996-2001,2008,2010,2011 by Solar Designer
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted.
 *
 * There's ABSOLUTELY NO WARRANTY, express or implied.
 */

/*
 * OpenBSD-style Blowfish-based password hash implementation.
 */

#ifndef _JOHN_BF_STD_H
#define _JOHN_BF_STD_H

#include <stdint.h>

#include "arch.h"

typedef uint32_t BF_word;

/*
 * Binary salt type, also keeps the number of rounds and hash sub-type.
 */
typedef struct {
	BF_word salt[4];
	unsigned char rounds;
	char subtype;
} BF_salt;

/*
 * Binary ciphertext type.
 */
typedef BF_word BF_binary[6];

#if BF_X2 == 3
#define BF_Nmin				3
#elif BF_X2
#define BF_Nmin				2
#else
#define BF_Nmin				1
#endif

#if defined(_OPENMP) && !BF_ASM
#define BF_cpt				3
#define BF_mt				1024
#define BF_N				(BF_Nmin * BF_mt)
#else
#define BF_mt				1
#define BF_N				BF_Nmin
#endif

/*
 * BF_std_crypt() output buffer.
 */
extern BF_binary BF_out[BF_N];

/*
 * ASCII to binary conversion table, for use in BF_fmt.valid().
 */
extern unsigned char BF_atoi64[0x80];

#if BF_X2 == 3
#define BF_ALGORITHM_NAME		"Blowfish 32/" ARCH_BITS_STR " X3"
#elif BF_X2
#define BF_ALGORITHM_NAME		"Blowfish 32/" ARCH_BITS_STR " X2"
#else
#define BF_ALGORITHM_NAME		"Blowfish 32/" ARCH_BITS_STR
#endif

/*
 * Sets a key for BF_std_crypt().
 */
extern void BF_std_set_key(char *key, int index, int sign_extension_bug);

/*
 * Main hashing routine, sets first two words of BF_out
 * (or all words in an OpenMP-enabled build).
 */
extern void BF_std_crypt(BF_salt *salt, int n);

#if BF_mt == 1
/*
 * Calculates the rest of BF_out, for exact comparison.
 */
extern void BF_std_crypt_exact(int index);
#endif

/*
 * Returns the salt for BF_std_crypt().
 */
extern void *BF_std_get_salt(char *ciphertext);

/*
 * Converts an ASCII ciphertext to binary.
 */
extern void *BF_std_get_binary(char *ciphertext);

#endif
